阅读说明：本技术 一种环境友好型车用初装油及其制备方法 (Environment-friendly vehicle primary oil and preparation method thereof ) 是由 訾立钧 徐光楠 尤瑞虎 容永源 于 2020-09-01 设计创作，主要内容包括：本发明公开了一种环境友好型车用初装油及其制备方法。该环境友好型车用初装油,主要由以下重量份的原料制成：异辛烷30-80份、制苯抽余油2-25份、甲基叔丁基醚2-20份、异戊烷2-25份,甲苯1-6份。本发明提供的环境友好型车用初装油,由于高辛烷值甲苯组分的加入,可以大幅降低对异辛烷馏程指标的苛刻要求,既降低了生产成本,又进一步降低了车用初装油的馏程残留量,从而进一步减少了汽车尾气排放,实现了环境友好的目的。(The invention discloses environment-friendly vehicle primary oil and a preparation method thereof. The environment-friendly vehicle primary oil is mainly prepared from the following raw materials in parts by weight: 30-80 parts of isooctane, 2-25 parts of benzene-making raffinate oil, 2-20 parts of methyl tert-butyl ether, 2-25 parts of isopentane and 1-6 parts of toluene. The environment-friendly vehicle primary oil provided by the invention can greatly reduce the harsh requirement on the distillation range index of isooctane due to the addition of the high-octane number toluene component, thereby not only reducing the production cost, but also further reducing the distillation range residual quantity of the vehicle primary oil, further reducing the emission of vehicle tail gas and realizing the purpose of environment friendliness.)

1. The environment-friendly vehicle primary oil is characterized by being mainly prepared from the following raw materials in parts by weight: 30-80 parts of isooctane, 2-25 parts of benzene-making raffinate oil, 2-20 parts of methyl tert-butyl ether, 2-25 parts of isopentane and 1-6 parts of toluene.

2. The environment-friendly vehicle primary oil according to claim 1, characterized in that:

the environment-friendly vehicle primary oil also comprises 0.0002-0.002 part of antistatic agent, and the antistatic agent is polysulfone type ashless gasoline antistatic agent.

3. The environment-friendly vehicle primary oil according to claim 1, characterized in that:

the distillation range of the isooctane is as follows: the initial boiling point is not lower than 30 ℃ and the final boiling point is not higher than 202 ℃.

4. The environment-friendly vehicle primary oil according to claim 1, characterized in that:

the saturated vapor pressure is 50-75KPa, and the distillation range is 30-190 deg.C.

5. The environment-friendly vehicle primary oil according to claim 1, characterized in that:

the recovery volume at 70 ℃ is 20-40%, the recovery volume at 100 ℃ is 60-80%, and the recovery volume at 125 ℃ is not less than 92%.

6. The preparation method of the environment-friendly vehicle primary oil is characterized by comprising the following steps of:

(1) the raw material ratio is as follows: 30-80 parts of isooctane, 2-25 parts of benzene-making raffinate oil, 2-20 parts of methyl tert-butyl ether, 2-25 parts of isopentane and 1-6 parts of toluene;

(2) adding the raw materials into a blending tank according to the proportion, and uniformly mixing.

7. The method for producing environment-friendly vehicle primary oil according to claim 6, characterized in that:

the environment-friendly vehicle initial oil also comprises 0.0002-0.002 part of antistatic agent, and the antistatic agent is polysulfone type ashless gasoline antistatic agent.

8. The method for producing environment-friendly vehicle primary oil according to claim 6, characterized in that:

the distillation range of the isooctane is as follows: the initial boiling point is not lower than 30 ℃ and the final boiling point is not higher than 202 ℃.

9. The method for producing environment-friendly vehicle primary oil according to claim 6, characterized in that:

the saturated vapor pressure is 50-75KPa, and the distillation range is 30-190 deg.C.

10. The method for producing environment-friendly vehicle primary oil according to claim 6, characterized in that:

the recovery volume at 70 ℃ is 20-40%, the recovery volume at 100 ℃ is 60-80%, and the recovery volume at 125 ℃ is not less than 92%.

Technical Field

The invention relates to environment-friendly vehicle ready-package oil and a corresponding preparation method of the vehicle ready-package oil, belonging to the technical field of petrochemical industry.

Background

At present, the concept of vehicle initial oil filling gradually enters the public vision and is accepted by various automobile manufacturers. The initial oil is the first injected fuel when a new vehicle is off-line, so the fuel quality directly concerns the vehicle performance. In the process of delivering a new vehicle to a client from off line, fuel oil is stored in a fuel tank of the new vehicle for a long time, and the new vehicle sometimes needs to be tested under conditions of high temperature, severe cold, humidity and the like. If the initial oil index can not adapt to the harsh use condition, the starting performance of the vehicle is influenced, fuel is easy to oxidize and deteriorate, colloid is generated, an oil way is corroded, a fuel filter screen, an oil nozzle and other parts are blocked, further serious engine faults are caused, and tail gas pollution is generated due to poor fuel combustion conditions.

Therefore, the environment-friendly vehicle type primary oil is provided, and the quality stability of the primary oil can be further improved on the basis of reducing the cost, so that the technical problem which needs to be solved urgently in the technical field is solved.

Disclosure of Invention

The invention aims to provide the environment-friendly vehicle primary oil which can be used for reducing the cost by using common commercial industrial isooctane and further improving the quality stability of the primary oil.

The invention aims to provide a preparation method of the environment-friendly vehicle primary oil.

In order to achieve the purpose, the invention adopts the following technical scheme:

according to a first aspect of embodiments of the present invention, there is provided an environment-friendly vehicle primary oil, which is mainly prepared from the following raw materials in parts by weight: 30-80 parts of isooctane, 2-25 parts of benzene-making raffinate oil, 2-20 parts of methyl tert-butyl ether, 2-25 parts of isopentane and 1-6 parts of toluene.

Wherein, the toluene is preferably 2-4 parts.

Preferably, the environment-friendly vehicle primary oil also comprises 0.0002-0.002 part of antistatic agent, and the antistatic agent is polysulfone type ashless gasoline antistatic agent.

Wherein preferably, the isooctane is common commercial industry isooctane, and the distillation range is as follows: the initial boiling point is not lower than 30 ℃ and the final boiling point is not higher than 202 ℃.

Wherein the saturated vapor pressure of the environment-friendly vehicle primary oil is 50-75KPa, and the distillation range is 30-190 ℃.

Preferably, the environment-friendly vehicle primary oil comprises the following components in percentage by weight: the recovery volume at 70 ℃ is 20-40% (volume fraction), the recovery volume at 100 ℃ is 60-80% (volume fraction), and the recovery volume at 125 ℃ is not less than 92% (volume fraction).

According to a second aspect of the embodiments of the present invention, there is provided a method for preparing environment-friendly vehicle primary fuel oil, including the steps of:

(1) the raw material ratio is as follows: 30-80 parts of isooctane, 2-25 parts of benzene-making raffinate oil, 2-20 parts of methyl tert-butyl ether, 2-25 parts of isopentane and 1-6 parts of toluene;

(2) adding the raw materials into a blending tank according to the proportion, and uniformly mixing.

Wherein, the toluene is preferably 2-4 parts.

Preferably, the environment-friendly vehicle primary oil also comprises 0.0002-0.002 part of antistatic agent, and the antistatic agent is polysulfone type ashless gasoline antistatic agent.

Wherein preferably, the isooctane is common commercial industry isooctane, and the distillation range is as follows: the initial boiling point is not lower than 30 ℃ and the final boiling point is not higher than 202 ℃.

Wherein the saturated vapor pressure of the environment-friendly vehicle primary oil is 50-75KPa, and the distillation range is 30-190 ℃.

Preferably, the environment-friendly vehicle primary oil comprises the following components in percentage by weight: the recovery volume at 70 ℃ is 20-40% (volume fraction), the recovery volume at 100 ℃ is 60-80% (volume fraction), and the recovery volume at 125 ℃ is not less than 92% (volume fraction).

Unless otherwise specified, all parts and percentages are by weight, and all equipment and materials are commercially available or commonly used in the industry.

Has the advantages that:

the environment-friendly vehicle primary oil and the preparation method thereof provided by the invention overcome the technical bias in the technical field, and the distillation range of industrial isooctane is widened by adding toluene and further optimizing the formula, so that the production cost is reduced, the distillation range residual quantity of the vehicle primary oil is further reduced, the automobile exhaust emission is further reduced, and the environment-friendly purpose is realized.

Detailed Description

The present invention will be described in more detail with reference to the following embodiments. It is to be understood that the practice of the invention is not limited to the following examples, and that any variations and/or modifications may be made thereto without departing from the scope of the invention.

In the invention, all parts and percentages are weight units, and all equipment, raw materials and the like can be purchased from the market or are commonly used in the industry, if not specified. The methods in the following examples are conventional in the art unless otherwise specified.

In the Chinese invention patent ZL 201610003855.9, a primary oil is disclosed. The traditional Chinese medicine composition is mainly prepared from the following raw materials in parts by weight: 30-80 parts of isooctane, 2-25 parts of benzene-making raffinate oil, 2-20 parts of methyl tert-butyl ether and 2-25 parts of isopentane. The initial oil has better stability, rust resistance, cleanness and low-temperature starting performance, and can meet the use requirements of long-term storage and harsh environmental conditions. The octane value of the primary oil is improved by using industrial isooctane and methyl tert-butyl ether, and the power requirement of the primary oil is met; the benzene-making raffinate oil and isopentane meet the control requirement of the primary oil distillation, so that good low-temperature starting performance is achieved; the initial oil also comprises 5-20 parts by weight of raw material stable light hydrocarbon, wherein the stable light hydrocarbon is prepared by hydrogenating coal-based Fischer-Tropsch synthetic oil and mainly is a C4-C8 alkane mixture, the distillation range is 35-165 ℃, the saturated vapor pressure is 40-50KPa, the content of normal alkane is more than 75%, the content of sulfur is less than 2g/L, and the content of aromatic hydrocarbon is less than 0.5%. The purpose of adding the stable light hydrocarbon is to adjust the saturated vapor pressure and the distillation range of the initially-charged oil so as to control the two indexes within a specified range.

The technical proposal meets the index requirements of saturated vapor pressure, distillation range, copper sheet corrosion and the like. However, after market research, the inventor finds that the primary oil produced according to the technical scheme disclosed by the patent needs to be used after the existing industrial isooctane product is cut, namely, the cut industrial isooctane with the distillation range of 30-180 ℃ needs to be used, so that the cost is obviously increased; if a conventional commercial iso-octane product is used, the distillation range is deteriorated, which eventually results in an unacceptable or unstable product quality.

Comparative examples 1 to 5: the formula of the environment-friendly vehicle primary oil is shown in the following table 1 (wherein the processed industrial isooctane is produced by Yanshan petrochemical company, the distillation range is 35-180 ℃, the saturated vapor pressure (37.8 ℃) is 35-60 kPa, the research octane number is 95 +/-1, and the density is 675-695 kg/m³(ii) a The benzene-making raffinate oil is produced by Yanshan petrochemical company, the distillation range is 60-110 ℃, the saturated vapor pressure (37.8 ℃) is 35-45 kPa, the research octane number is 68 +/-1, and the density is 675-695 kg/m³The three raw materials of methyl tert-butyl ether, industrial isopentane and toluene are purchased from Yanshan petrochemical company, and the purity is not lower than 99.0 percent):

TABLE 1 formulations for comparative examples 1-5